Gas singeing device for yarns of all kinds



May 8. 1928. 1,669,033

R. MULLER-ZOLLINGER GAS SINGEING DEVICE FOR YARNS OF ALL KINDS FiledFeb. 9, 1927 2 Sheets-Sheet 1 a I d I Q 7 fig! fizz m Y Li INVENTAltering May s. 1928. 1,669,033

R. MULLER-ZOLLINGER GAS SINGEING DEVICE FOR YARNS OF ALL KINDS 2Sheets-Sheet 2 Filed Feb. 9, 1.927

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' Miami line MN in Figure 5 Patented May 8, 1928.

UNITED STATES 7 A CGRPORATION OF SWITZERLAND.

' a r 1,669,033 PATE T OFFICE Ruben emazommm,presumes, 'swr'rznnnimn;Assrenon ronABne, :rnn LANGENTVHAL LMACHINEJ wonxs, LI ITED;orflLAnennrn L; SWITZERLAND,

' GAs'sINeEIiIepnvIcE' ron or ennitrn'ns Application filed r bruar e,1'927',;seri;a No. 166,843, and' in Switzerland February 12, 1926.

The subject-matter oi this invention isa gas singeing-dev-ice, whereinthe singeiug-- tube consists of annular elements or sections detachablyplaced one on another, spaces be lng provided between the adjacentelements or sections, which spaces open into the cen tral hereof thetube and are connected with the gas-supply pipe.

- Asconipared with known devices comprising a. singeing-tube theimproved device ac cording to the invention has the advantage that inconsequence of the described construction ofthe tube circular burnerslots are provided and consequently "flaines are produced in the tubewhich completely fill up the cross-section of the central duct, so thatthe thread drawn through the device is; singed uniformly on allsides,Another ad vantage is that the saidfslots can be cleaned much moreeasily than the small burner openings which were universally customaryheretot'oreand which readily become choked and can be cleaned withdifficulty.

Two embodiments of the invention are illustrated by way of example inthe accompanying drawings, where1n:--

Figures 1 to 4 show one singeing tube according 'to the invention,

Figure 1 beinga Vertical section takenon the line AB in Figure 3,

Figure 2 a verticalsection taken on the line G'F in Figure 1, and p aFigure 4 a horizontal section taken on the line HJ in Figure 1 Figures'5 to 8 show a second form of tube according to the invention, V VFigure 5 being a vertical section takenon the line K L in Figure 6, Y

Figure 6 a horizontalsection taken on the Figure 7 a vertical section ofa detaih and Figure'S a horizontal section showing a' modified detail. af

Figure 9 is a vertical sectional view of a detail showing the end facesof the adjacent sections disposed at substantially from each other. p

Referring first to Figures 1 to l, the numeral 1 designates thedetachable base of t-hes'ingeing-tube which is attached to the wall 2.In the base 1 is formed a supply y i et 5hr he s which ente s themes heangle of up to 90 or moreone as illustrated in'Fig. 9;

branch pipe 4-." "Thebase carries a'jaclieti 5 of the tube, which jacketis held by bolts (3 between the base and a'cover plate 7. The

jacket 5 closely surrounds the singeing tube which con'iprlsesmannularsections or cleinents 8 arranged one on another. 111 the outer sideo't'the sections 8 ducts 9 are provided which extend almost the entireheight of the tube and are in open communication with theduct SQ I -Theupper end of each duct 9 is closed." Between two adjacentel0-distributes itself amongst the outer ducts 9- '..andthencnters throughthe gapsor spaces 11' into thecentral duct or bore 13. In consequence ofthe described form ot'the spaces 11 a round flame filling the entirecr'oss-section of the duct 13 and ending in a central jet of flame isproduced in each of these r spaces 11, so that every thread drawn"through the'device will beuniformly singed on all sides.

The'grooves l t of the sections prevent the fiaines from, beinginterrupted which might occur without these grooves owing tothe draughtcausedbythe threads "pulled at a-high speed through the burner.

In consequence of the describedconstruo it canbereadily taken apart andcleaned. Owing to the intermediate gaps or spaces 11 widening outwardsthe singeing-device can be cleaned with a burette without dangerloi':

stopping up the said "spaces. The taking apart can be facilitated by"making the jacket '5 in two parts.

Instead of being cylindrical, as shown in the drawing, the sections Smayhave any other convenient form; The end faces ofthe successive sectionsor elementsniay form an with another,

Referring now to Figures 5 e -6, in is tion theld'evice also has theadvantage that form the elements or sections have double walls, andbetween the end faces of the inner walls of two adjacent sectionsannular burner "slots'or gaps are left which place the central duct ofthe singeing-tube in open communication with the gas-supplying space orduct between the walls of the sections.

The device shown in Figures and 6 comprises a bracket 1 integral withthe base oi? the singeing-tube. In this base 15 the supply duct 3 forgas is provided. The base 15 has in addition two holes 16 serving forreceiving bolts not shown; these bolts are for detachably connecting thebase 15 with a cover-1i and holding the elements or sections 18 betweenthe base and cover. The cylindrical sections 18 have double walls, theouter walls 19 being connected with the inner walls 20 by radial ribs21. .The outer walls of two adjacent elements are interconnected at 22by a groove and'tongue. Between the end faces of the inner-walls 20 oftwo adjacent elements 18 annular burner slot-s or gaps 23 are providedby recessing the one end face, which slots place the central duct 24 ofthe singeing burner in open connection with the duct or space 25 betweenthe outer and inner walls of the elements. In addition, a groove 26 isformed in the end face of the in nei' wall 20 of each element situatedabove a slot 23. An admission slot 27 for the thread is provided alongthe entire length of the singeing burner.

The gas enters through the channel 3 into the space 25 and passesthrough the slots 23 into the central duct or bore 24 of the burner. Ateach burner slot 23 a round flame filling the entire cross-section ofthe bore '24 is formed, which flamesensure that the thread drawn throughthe burner shall be singed uniformly on all sides. The grooves 26prevent the frames from being ruptured by the draught which is causedbythe air flowing through the burner from-below upwards and which isincreased bythe thread movingat a high'speed throughthe burner.

The modified detail shown in Figures 7 and 8 has the object of enablingsecondary air to be admitted to the central'b'ore or duct. The inner andouter walls 19'and 2O respectively of each element are connected byradial ribs 28, whereof each rib and the walls connected by it aretraversed by aduct 29 whichenables the outer air to enter into thecentral bore of the'burner. Above the point where each duct 29 opensinto the central bore there is formed in each element a groove 3O whichfacilitates the admission of air to the central bore by its preventingthe air entering through the ducts 29 from being cut off by the currentof air and gas flowing through the central bore. Theducts 29 may beformed conically or as slots if desired, and they maybe directedslantwise instead of horizontally.

' duct formed in the walls of said elements and extending substantiallythe entire length of the tube for connection to a gas supply pipe.

In a singeing-device, a singeing tube comprising in combination aplurality of tubular elements detachably placed one on another end toend, which elements are so shaped as to leave between them annular slotswhich open into the central bore of the tube, and at least one duct forconnecting said spaces with a gas-supply conduit;

4. In a gas singeing-device, a singeing tube comprising a plurality oftubular elements detachably placed one on another end .to end, whichelements are so shaped as to leave between them annular gaps which openinto thecentralbore of thetube, and at least one duct formed in thewalls of said elements and extending through said gaps substantially theentire length of the tube for connection to a gas-supplying conduit,each of which elements has a groove formed in it above a gap at thebottom of it.

5. In a gas singeing-device, a singeing tube comprising a plurality ofdoublewalled tubular elements detachably placed one on another end toend, which elements are so shaped as to leave between them spaces whichopen intothecentral bore of the tube, the space between the walls ofsaid elements serving as a duct for supplying gas to said spaces.

6. In a gas singeing-device, a singeing tube comprising a plurality ofdouble-walled tubular elements dctachably placed one on another end toend, which elements are so shaped as to leave between them annular gapswhich open each into the central bore of the tube, the space between thewalls of the elements being in open communication with said gaps andserving for connecting them with a gas-supply conduit.

7. In a gas singeing-device, asingeing tube comprising a plurality ofdouble,- walled tubular elements detachably placed one on another end toend, the outer walls of which elements have a tongue on oneelemententering a recess in an adjacent element, which elements are so shapedas to leave between them at their ends gaps which open into the centralbore of the tube, the space between the walls of which elements isadapted to supply gas to said gaps.

8.111 a gas singeing-device, a singeing tube comprising a plurality ofdoublewalled tubular elements detachably placed one on another end toend, which elements are so shaped as to leave between them at their endsgaps which open into the central bore of the tube, the space between thewalls of which elements is adapted to supply gas to said gaps, eachelement having at least one rib connecting the inner and outer walls ofthe element, each of which ribs and the walls connected therewith isperforated by a duct for supplying air to the central bore.

9.111 a gas singeing-device, a singeing tube comprising a plurality ofdoublewalled tubular elements detaehably placed one on another end toend. which elements are so shaped as to leave between them at their endsannular gaps which open into the central bore of the tube, the spacebetween the walls of which elements servesrto supply gas to said gaps,each element having atleast one rib connecting the inner and outer wallsof the element, each of which ribs and the walls connected therewith isi perforated by a duet for supplying air to the central bore, each ofwhich elements has a groove above the outlet of its said duct into coverplate, which elements are so shaped as to leave between them annularslots which open into the central bore of the tube, and at least oneductarranged to connect said slots to a gas-supply conduit.

11. In' a gas singeing-device, a singeing tube comprising in combinationa base having a gas-supply duct, a cover plate, and a pluralityoftubular elements detachably placed one on another end to enddetachably between said base and cover plate, which elements are soshaped as to leave between them gaps which open into the central bore ofthe tube, and at least one duct extending through said elements andconnecting said gaps to said gassupply duct in the base.

Signed at Berne, this 26th day of J anuary 1927.

RUDOLF h [ULLERZOLLINGER.

